Soil Data Explorer - TUSTIN

Official Series Description

Lab Data Summary

Aggregate lab data for the TUSTIN soil series. This aggregation is based on all pedons with a current taxon name of TUSTIN, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to TUSTIN were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the TUSTIN soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the TUSTIN series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the TUSTIN series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the TUSTIN series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

Competing Series

Soil series competing with TUSTIN share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the TUSTIN series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

There are insufficient data to create the annual climate figure.

Geomorphic description summaries for the TUSTIN series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 2D hillslope position figure.

There are insufficient data to create the 3D hills figure.

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with TUSTIN, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2023-10-02).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing TUSTIN as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
Tustin loamy fine sand, 2 to 6 percent slopes	27B	764	186164	67q9	mi021	1979	1:15840
Tustin loamy fine sand, 6 to 12 percent slopes	27C	355	186165	67qb	mi021	1979	1:15840
Tustin loamy fine sand, 2 to 6 percent slopes	12B	1412	187098	68pf	mi081	1984	1:15840
Tustin loamy fine sand, 6 to 12 percent slopes	12C	765	187099	68pg	mi081	1984	1:15840
Tustin loamy fine sand, 0 to 6 percent slopes	39B	279	192556	6gch	mi105	1992	1:15840
Tustin loamy sand, 0 to 6 percent slopes	46B	2633	187751	69ch	mi107	1982	1:15840
Tustin loamy sand, 6 to 12 percent slopes	46C	1371	187752	69cj	mi107	1982	1:15840
Tustin loamy sand, 1 to 6 percent slopes	40B	1914	186471	6816	mi123	1990	1:15840
Metea-Tustin complex, 6 to 18 percent slopes	137C	1312	186439	6805	mi123	1990	1:15840
Tustin loamy sand, 6 to 12 percent slopes	40C	702	186472	6817	mi123	1990	1:15840
Metea-Tustin complex, 0 to 6 percent slopes	137B	545	186438	6804	mi123	1990	1:15840
Tustin loamy fine sand, 2 to 6 percent slopes	TuB	608	423375	g6k8	wi021	1972	1:15840
Tustin loamy fine sand, mottled subsoil variant, 0 to 4 percent slopes	TvA	367	423376	g6k9	wi021	1972	1:15840
Tustin loamy fine sand, 1 to 6 percent slopes	TuB	764	423760	g6yp	wi047	1974	1:20000
Tustin loamy sand, 1 to 6 percent slopes	TwB	852	423223	g6dc	wi111	1977	1:15840
Tustin loamy sand, sandy substratum, 2 to 6 percent slopes	TuB	873	422755	g5x8	wi135	1982	1:15840
Tustin loamy sand, 2 to 6 percent slopes	TuB	987	423991	g764	wi137	1986	1:20000
Tustin fine sand, 2 to 6 percent slopes	TuB	2708	422829	g5zn	wi139	1977	1:20000
Tustin loamy fine sand, 2 to 6 percent slopes	TuB	2420	422903	g621	wi600	1976	1:15840

Map of Series Extent

Approximate geographic distribution of the TUSTIN soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2023-10-04).